/**
* Creates results for a file or for a symlink that points to one.
*
* <p>A symlink may be direct (points to a file) or transitive (points at a direct or transitive
* symlink).
*/
private static RecursiveFilesystemTraversalValue resultForFileRoot(
RootedPath path, FileInfo info) {
Preconditions.checkState(
info.type.isFile() && info.type.exists(), "{%s} {%s}", path, info.type);
if (info.type.isSymlink()) {
return RecursiveFilesystemTraversalValue.of(
ResolvedFile.symlinkToFile(
info.realPath, path, info.unresolvedSymlinkTarget, info.metadata));
} else {
return RecursiveFilesystemTraversalValue.of(ResolvedFile.regularFile(path, info.metadata));
}
}
/**
* Creates result for a dangling symlink.
*
* @param linkName path to the symbolic link
* @param info the {@link FileInfo} associated with the link file
*/
private static RecursiveFilesystemTraversalValue resultForDanglingSymlink(
RootedPath linkName, FileInfo info) {
Preconditions.checkState(
info.type.isSymlink() && !info.type.exists(), "{%s} {%s}", linkName, info.type);
return RecursiveFilesystemTraversalValue.of(
ResolvedFile.danglingSymlink(linkName, info.unresolvedSymlinkTarget, info.metadata));
}
private static RecursiveFilesystemTraversalValue resultForDirectory(
TraversalRequest traversal,
FileInfo rootInfo,
Collection<RecursiveFilesystemTraversalValue> subdirTraversals) {
// Collect transitive closure of files in subdirectories.
NestedSetBuilder<ResolvedFile> paths = NestedSetBuilder.stableOrder();
for (RecursiveFilesystemTraversalValue child : subdirTraversals) {
paths.addTransitive(child.getTransitiveFiles());
}
ResolvedFile root;
if (rootInfo.type.isSymlink()) {
root =
ResolvedFile.symlinkToDirectory(
rootInfo.realPath,
traversal.path,
rootInfo.unresolvedSymlinkTarget,
rootInfo.metadata);
paths.add(root);
} else {
root = ResolvedFile.directory(rootInfo.realPath);
}
return RecursiveFilesystemTraversalValue.of(root, paths.build());
}